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https://git.lyx.org/repos/lyx.git
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f9de88c53c
Fedora ships these chmod 644 and has never seen a problem. The advantage to doing this is that it better controls what version of python we are using to launch the script, and it will reveal if we're somehow somewhere not controlling that properly.
112 lines
3.1 KiB
Python
112 lines
3.1 KiB
Python
'''
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file clean_dvi.py
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This file is part of LyX, the document processor.
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Licence details can be found in the file COPYING
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or at http://www.lyx.org/about/licence.php
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author Angus Leeming
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Full author contact details are available in the file CREDITS
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or at http://www.lyx.org/about/credits.php
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Usage:
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python clean_dvi.py infile.dvi outfile.dvi
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clean_dvi modifies the input .dvi file so that
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dvips and yap (a dvi viewer on Windows) can find
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any embedded PostScript files whose names are protected
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with "-quotes.
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It works by:
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1 translating the machine readable .dvi file to human
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readable .dtl form,
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2 manipulating any references to external files
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3 translating the .dtl file back to .dvi format.
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It requires dv2dt and dt2dv from the DTL dviware package
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http://www.ctan.org/tex-archive/dviware/dtl/
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'''
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import os, re, subprocess, sys
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def usage(prog_name):
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return 'Usage: %s in.dvi out.dvi\n' \
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% os.path.basename(prog_name)
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def warning(message):
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sys.stderr.write(message + '\n')
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def error(message):
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sys.stderr.write(message + '\n')
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sys.exit(1)
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def manipulated_dtl(data):
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psfile_re = re.compile(r'(special1 +)([0-9]+)( +\'PSfile=")(.*)(" llx=.*)')
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lines = data.split('\n')
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for i in range(len(lines)):
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line = lines[i]
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match = psfile_re.match(line)
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if match != None:
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file = match.group(4)
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filelen = len(file)
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file = file.replace('"', '')
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# Don't forget to update the length of the string too...
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strlen = int(match.group(2)) - (filelen - len(file))
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lines[i] = '%s%d%s%s%s' \
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% ( match.group(1), strlen, match.group(3),
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file, match.group(5) )
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return '\n'.join(lines)
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def main(argv):
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# First establish that the expected information has
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# been input on the command line and whether the
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# required executables exist.
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if len(argv) != 3:
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error(usage(argv[0]))
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infile = argv[1]
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outfile = argv[2]
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if not os.path.exists(infile):
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error('Unable to read "%s"\n' % infile)
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# Convert the input .dvi file to .dtl format.
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if os.name == 'nt':
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unix = False
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else:
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unix = True
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dv2dt_call = 'dv2dt "%s"' % infile
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dv2dt_pipe = subprocess.Popen(dv2dt_call, universal_newlines=True, \
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stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, \
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shell=unix, close_fds=unix)
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(dv2dt_stdin, dv2dt_stdout, dv2dt_stderr) = \
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(dv2dt_pipe.stdin, dv2dt_pipe.stdout, dv2dt_pipe.stderr)
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dv2dt_stdin.close()
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dv2dt_data = dv2dt_stdout.read()
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dv2dt_status = dv2dt_stdout.close()
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if dv2dt_status != None or len(dv2dt_data) == 0:
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dv2dt_err = dv2dt_stderr.read()
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error("Failed: %s\n%s\n" % ( dv2dt_call, dv2dt_err) )
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# Manipulate the .dtl file.
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dtl_data = manipulated_dtl(dv2dt_data)
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if dtl_data == None:
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error("Failed to manipulate the dtl file")
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# Convert this .dtl file back to .dvi format.
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dt2dv_call = 'dt2dv -si "%s"' % outfile
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dt2dv_stdin = os.popen(dt2dv_call, 'w')
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dt2dv_stdin.write(dtl_data)
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if __name__ == "__main__":
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main(sys.argv)
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